Abstract
Distortions of the oxygen sublattice couple to (Formula presented) orbitals of (Formula presented) and drive a cooperative Jahn-Teller (orbital ordering) transition in (Formula presented) A simple model for this transition is studied. Without further adjustment, the model predicts the shape and stability of small (anti-Jahn-Teller) polarons that form when holes are doped into the material. This leads to a new description of the lightly-doped insulator, the antiferromagnetic to ferromagnetic transition, and the metal-insulator transition.
| Original language | English |
|---|---|
| Pages (from-to) | 10747-10753 |
| Number of pages | 7 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 60 |
| Issue number | 15 |
| DOIs | |
| State | Published - 1999 |
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